Any time anyone confesses to a crime, and subsequently retracts that confession, the possibility arises that they did so because of police pressure. That is reflected in the fact that in many countries there are laid down procedures for ensuring that interrogations are videoed, or independent witnesses present etc.

Italy is one such country. However the laid-down procedures do not appear to have been complied with.

If a retracted confession does not indicate that the person making it knew things about the crime that only a guilty person could have known, it should be given very little weight indeed, especially if it is not accompanied by hard evidence.